US2507359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic fire alarm
Assignee: Individual
•
Filing: 1943-01-27
•
Granted: 1950-05-09
•
Expires: 1963-01-27
Abstract
No abstract record available.
Inventors
- 👤 Paul B Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:48
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/12; H; H01; H01J; H01J47/00; H01J47/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1811023A
Cited
US1917855A
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US1971191A
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US2019634A
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US2150467A
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US2128582A
Cited
US2202060A
Cited
US2217205A
Cited
US2238605A
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US2269340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |